Mumble - tourmalineMumble - tourmaline

Mumble: Online Faceting Designs and Diagrams


"The Mumble" by Jeff Graham can be cut with or without a table and is well suited for medium to light colored quartz, tourmaline, topaz, or peridot. Experienced faceters can cut this gem design quickly, and it’s different and bright enough to attract attention and sell well, too.

0
I wanted a design that would look different. Something where I could leave an apex on the crown if I wished. The Mumble cut looks good either way.

You can find cutting instructions for the Mumble here.

Cutting Remarks

Mumble - tourmaline
An approximately 2.20-ct, 8.8 x 6 mm (deep) cornered Mumble cut, top-color pastel green tourmaline, Afghanistan. Cut by Jeff Graham.

Although the Mumble looks good with or without a table, I think cutting a table is a good idea with lighter colored and larger stones.

The Mumble isn't hard to cut in larger stones, but the meets get difficult as the gem gets smaller on the crown.

This design cuts fast and works well in quartz, tourmaline, topaz, and peridot. I recommend cutting it in a medium-color material. Since this is a very bright design, it will overpower a lighter stone. (Still, I did cut the example shown above in a light pastel piece of tourmaline).

This is a "Money Cut." I've found this shape sells very well for those of you interested. It will set easily in most trillion mounts, yet looks different enough to catch the eye. I've sold every Mumble I've cut.

Enjoy cutting your own "Mumble."

Mumble - array
Random - Cosine - ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler


Jeff R. Graham

The late Jeff Graham was a prolific faceter, creator of many original faceting designs, and the author of several highly-regarded instructional faceting books such as Gram Faceting Designs.

Latest Articles

More Articles
Classic Engagement Ring StonesPastel purple sapphire</a>, 1.08 cts, 5.8 mm, round cut, Sri Lanka. © <a href=https://www.gemsociety.org/article/online-faceting-designs-diagrams-mumble/"https://www.thegemtrader.com/">The Gem Trader</a>. Used with permission." src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="responsive" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:cover;object-position:50% 50%"/>

Classic Engagement Ring Stones

Emerald, ruby, sapphire, and diamond are the most popular choices for classic engagement ring stones. Learn more about these traditional...
Read More
Broken Bangle — The Blunder-Besmirched History of Jade Nomenclature: Book Review

Broken Bangle — The Blunder-Besmirched History of Jade Nomenclature: Book Review

Is fei cui a better term for "pyroxene jade" than jadeite? Jeffery Bergman reviews Broken Bangle, a new book on...
Read More
Cuprite Value, Price, and Jewelry InformationJoel E. Arem</a>, PhD, FGA. Used with permission." src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="responsive" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:cover;object-position:50% 50%"/>

Cuprite Value, Price, and Jewelry Information

One of the rarest of all facetable gems, cut cuprites can show magnificent deep red color. However, these beautiful stones...
Read More
Gemstone Radiation TreatmentPhoto courtesy of <a href=https://www.gemsociety.org/article/online-faceting-designs-diagrams-mumble/"https://www.liveauctioneers.com/">liveauctioneers.com and <a href=https://www.gemsociety.org/article/online-faceting-designs-diagrams-mumble/"https://www.liveauctioneers.com/auctioneer/1081/eros-auctions-inc/">Eros Auctions, Inc</a>." src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" decoding="async" data-nimg="responsive" style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:cover;object-position:50% 50%"/>

Gemstone Radiation Treatment

Gemstone radiation is a common but little understood technique for altering colors. Learn how it works and what gems usually...
Read More

Never Stop Learning

When you join the IGS community, you get trusted diamond & gemstone information when you need it.

Become a Member

Get Gemology Insights

Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!